NEET Zoology Digestion and Absorption Questions Solved

A muscular sphincter regulating opening of oesophagus into the stomach is called:

(1) Pyloric sphincter

(2) Cardiac Sphincter

(3) Sphincter of oddi

(4) Boyden sphincter

Audio Explanation:

(2) A muscular sphincter (gastro-oesophageal) regulates the opening of oesophagus into the stomach. Cardiac is the upper part of stomach into which the oesophagus opens, thus the sphincter is called as cardiac sphincter.

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